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Forthcoming and Online First Articles
International Journal of Advanced Mechatronic Systems
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International Journal of Advanced Mechatronic Systems (5 papers in press)
Identify Magnetizing Inductance and Rotor Resistance to Improve the Performance of the Induction Motor through IRFOC by Hamdy Soliman Abstract: To get a high dynamic performance of AC machines, use the field-oriented control. The best method of field-oriented control is an indirect rotor flux-oriented control. When applied this method of control on the induction motor it is found that the dynamic performance depends upon the rotor parameters. If these parameters in the controller module compatible with the same parameters inside the motor, these grantees high dynamic performance of the motor. If any one of these parameters in the motor doesn't compatible with the same parameter in the controller module, the orientation will lose. The orientation loss leads to the deterioration in the performance characteristics of the induction motor. The aim of this paper is to study the impact of this problem on the performance characteristics of the three-phase cage induction motor under the effect of the load and trying to solve this problem through simulation. Keywords: Induction motorrnindirect rotor field-oriented controlrnrotor resistancernMATLAB.
Riddance and harmonic characterization of photovoltaic fed single phase h-cascaded multilevel inverter by Debswarup Rath, Akshaya Kumar Patra, Sanjeeb Kumar Kar Abstract: The solar electric (Photovoltaic or PV) system generates the electrical power at the day time. The current and voltage distortions are caused by the nonlinearities present in PV system which lead to the power issues. In the proposed PV system, the Insulated Gate Bipolar Junction Transistor (IGBT) switches the boost converter and 9-level reduced switch h-cascaded multilevel inverter to regulate the output power of the system. In case of PV system, boost converter output is fed to the inverter to transform power from Direct Current (DC) to Alternating Current (AC) thereby inducing harmonic. The harmonic causes unnecessary overheating of the equipments, nuisance tripping of breakers and power factor reduction. The Proportional Integral Derivative (PID) controller along with Sinusoidal Pulse Width Modulation (SPWM) is implemented in the proposed PV system to reduce the harmonic distortion and to improve the system performance. In the scope of this paper, the performance analysis of the PV system is done as far as accuracy, robustness and stability. Keywords: solar electric system; converters; power quality; Inverter; IGBT; multilevel inverter; harmonicrnrn.
Multilevel inverter for grid interconnection with square wave voltage sources and minimization of active filter capacity by Y. Noge, Mingcong Deng, Mitsuru Miyashita Abstract: This paper proposes a photovoltaic module integrated microinverter using a gradationally controlled voltage source and a series connected active filter. Recently, a microinverter based on an isolated resonant DC-DC converter is widely used. A typical microinveter can achieve high efficiency around 97%. In addition, a microinverter system can achieve high Maximum Power Point Tracking (MPPT) efficiency by its small photovoltaic area. The proposed circuit is a combination of a gradationally controlled voltage source, an active filter connected in series and an unfolding circuit. This circuit reduces the power to be converted to 1/8 as compared with a conventional inverter. The control strategy for the proposed circuit is also discussed in this paper. Finally, the grid connected operation is verified by circuit simulation. Keywords: renewable energy; photovoltaics; multi-level inverter; grid interconnection.
Combination of ADRC and distributed delays shapers: application for position control and sway reduction in gantry crane by Minh Duc Duong, Quy Thinh Dao, Manh Linh Nguyen, Trong Hieu Do Abstract: This paper presents a novel combination controller design for improving the performance of the crane system. The considered crane has one control input (trolley force) whereas there are two variables to be controlled (trolley position and payload sway angle). A popular practical approach for crane control is the combination of the conventional input shaping technique and a traditional PID controller but its performance is easily degraded by disturbance and parameter uncertainty. The combination of active disturbance rejection control (ADRC) with distributed input shaping proposed in this paper comes up with a simultaneous trolley-position regulation in presence of disturbance and sway suppression. The ADRC is used to control the trolley position precisely and reject disturbance while keeping the simplicity in design as PID controller, and distributed input shaping plays the role of payload vibration suppression. Simulations show the effectiveness of the proposed approach. Keywords: active disturbance rejection control; ADRC; distributed input shaping; inverse shaper; vibration suppression; active disturbance rejection. DOI: 10.1504/IJAMECHS.2021.10041157
Study on the field strength and the output power of the dual Halbach magnet array-based linear generator using mix calculation methods by Huy Diep Do, Xuan Quynh Nguyen, The Ba Dang Abstract: Ocean wave energy conversion is an emergent and highly important research topic in Vietnam. In an early research work, an experimental permanent magnet linear energy generator was developed and studied. In this contribution, we have utilised a mix method of combination the Ansys numerical simulation with a MATLAB-Simulink program to study the effect of different mechanical and electrical structural components on the performance of a linear generator using multiple dual Halbach magnet arrays. Results have shown that the simulation approach is useful for finding out the appropriate structural parameters of both the mechanical and electrical components and the design to obtain optimised satisfactory performance features, such as efficiency and maximal output power of the system. Keywords: wave energy converter; linear generator; Halbach arrays; numerical simulation; MATLAB-Simulink. DOI: 10.1504/IJAMECHS.2021.10041326